Door-check.



Patented July l0, I900.

0. F. HANlNGTON.

DOOR CHECK.

(Application filed Oct. 2'5, 1e99,

(No Model.)

' Inventor LITHO. WkSHING'TDN n c V of reference.

1 and 2 represent the two leaves, one being stationary and the otherconnected to the door. The leaf 1, which is ordinarily the stationaryleaf, carries the two knuckles 3 3, and the other leaf carries thebarrel 4:,whichturns NITED STATES v PATENT OFFICE.

CHARLES F. I-IANINGTON, OF NEW YORK, N. Y., ASSIGN OR TO THE ME-CHANICAL DOOR HINGE CHECK COMPANY, OF SAME PLACE.

DOOR-CHECK.

SPECIFICATION forming part of Letters Patent No. 653,295, dated July 10,1900.

Application filed October 25, 1899.

To all whom it may concern:

Be it known that 1, CHARLES F. HANINGTON, a citizen of the UnitedStates, residing in the borough of Manhattan,in the city, county,andState of New York, have invented a certain new and useful Improvement inDoor-Checks, of which the following is a description.

My invention relates to various new and useful improvements indoor-checks of the type described by me in my Patent No. 601,830, datedApril 5, 1898, wherein one of the'hinge-leaves carries a pivoted boltnormally maintained in a plane adapted to engage a stationary abutmenton the other leaf, a spring being employed to absorb the shock due tothe engagement of these parts when the door has almost reached a closedposition, mechanism being employed, actuated either at the moment ofengagement between the parts or during the checking operation, to allowthe said pivoted bolt to be moved out of its normal plane upon therebound, whereby the door will be permitted to close, and mechanismbeing also employed which is brought into play upon the opening of thedoor to reset the said bolt in position to again perform a checkingoperation.

The object of my present invention is to produce a device of thisgeneral type which shall be very much simpler to construct and capableof better and more perfect operation than the prior devices.

In order that the invention may be better understood, attention isdirected to the accompanying drawings, forming a part of thisspecification, and in which- Figure 1 is an elevation showing thehingeleaves in their open position, the operative parts being disclosedfor the purpose of clearness Fig. 2, a section on the line 2 2 of Fig.1; Fig. 3, a section on the line 3 3 of Fig. 1, and Fig. 4 a perspectiveview of the hinge in its closed position.

In all of the above views corresponding parts are represented by thesame numerals Serial No. 734,697. (No model.)

mounted so as to leave a space beneath it in I which the pivoted boltmay move in the closing operation. This bolt 8 is pivotally mounted on astud 9 to the leaf 1, in a recess 11 therein, and is adapted to beforced downward by a spring 12 when the said bolt is released.

Normally the inner end of the bolt travels in a plane coincident withthe abutment 7, so that the bolt will engage with said abutment when thedoor has reached an almost-closed position to provide fora checkingaction. In order that this checking action maybe elastic in character,the bolt 8 bears upon a plate 13, having a shank 14:, which is carriedwithin an offset 15, cast with the leaf 1, a heavy spiral spring 16surrounding said shank, so as to permit of a slight inward movement ofthe plate 13 when the bolt 8 engages the abutment 7. In order tonormally look the bolt 8 in an elevated position and in the plane of theabutment 7, I provide a U-shaped latch 17,having two arms, as shown,working in suitable bearing-openings in the offset 15. One of these arms18 engages beneath the bolt 8, as shown in Figs. 1 and 3, while theother arm 19 passes through the leaf 1 and is'adapted to be engaged by ascrew 20, carried by the other leaf, at the instant that the bolt 8engages the abutment 7, or during the time that said bolt is inengagement with said abutment and the yielding of the spring 16 haspermitted the leaf 2 to advance to a slightlyfurther extent toward theleaf 1. By adj usting the position of the screw 20 the moment ofengagement between said screw and the arm 19 of the latch can beregulated within very close limits. In order to provide for theresetting of the bolt 8, I employ a'resettinglever 21, which is pivotedto the leaf 1 and which engages over the rear end of the bolt 8, as at22, beyond the pivot 9 thereof. The forward end 23 of theresetting-lever 21 travels within the groove 6, immediately above thebottom of said groove, and is adapted to engage with a resetting-cam 24,the position of which is adjustable by a screw 25 in a slot 26. Bychanging the position of the cam 24: the resetting of the bolt 8 can bemade to take place at any part of the opening movement of the door. Theresetting-cam 24 will, it is understood, be located in a recess 27,(shown in dotted lines, Fig. 1,) formed in the barrel below the lowerface of the groove 6. Said recess is provided with a deep portion 28,which coincides with a downturned extension 29 of the slot 26.Byloosening the screw 25 and shifting the resetting-cam 21 toward theportion 28 of the groove 27 the said resetting-cam can be depressedbelow the surface of the bottom of the groove 6 and held in thatposition by tightening the screw 25, whereby the resetting operationwill not take place and the checking mechanism will be thrown out ofoperation, as will be explained. The groove 6 is normally covered by ashield or band 30, which is carried by the stationary leaf 1, while thebolt 8 and the resetting-lever 21 are concealed by a thin plate 31,which is secured over the recess 11.

Assuming the parts to be in the position shown in Fig. 1 with the dooropen, the operation will be as follows: The door being closed by theusual closing-sprin g will cause the leaf 2 to approach the leaf 1 untilthe abutment 7 engages the inner end of the bolt 8. This engagementeffects a checking operation on thedoor and brings the door to acomplete rest, the spring 16 allowing for the necessary elasticity andpreventing any damage to the parts. In this movement the screw 20 willengage the arm 19 of the release-lever 17, and said lever will bewithdrawn from beneath the bolt 8 against the tension of the smallspiral spring 32, which is secured to said releasing-lever. Although thebolt 8 will now be released, the engagement between the bolt and theabutment 7 will prevent the spring 12 from moving the bolt downwarduntil the rebound has taken place and those parts have separated. Uponthe rebound the spring 12 will depress the bolt 8 to the position shownin dotted lines, Fig. 1, so that the inner end of the bolt will clearthe abutment 7, whereupon the door will be permitted to close. Upon theopening of the door the inner end 23 of the resetting-lever 21 willengage the .cam 24, depressing the outer end of the resetting-lever andelevating the bolt 8 to its normal position, whereupon said bolt will beagain engaged by the locking-lever 17 and held in that position readyfor another checking operation to be effected.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is as follows:

1. In a mechanical door-check, the combination of the two hinge-leaves,an abutment carried by or with one of said leaves, a pivotedchecking-bolt carried by or with the other of said leaves and normallyarranged in the same plane as said abutment, whereby the said bolt andabutment will engage together to perform a checking operation, alockinglever for locking said bolt in its normal position, said leverbeing carried by and projecting through the leaf which carries the boltand adapted to be engaged by a part of the other leaf, substantially asset forth.

2. In a mechanical door-check, the combination of the two hinge-leaves,an abutment carried by or with one of said leaves, a pivotedchecking-bolt carried by or with the other of said leaves and normallyarranged in the same plane as said abutment, whereby the said bolt andabutment will engage together to perform a checking operation, alockinglever for locking said bolt in its normal position, said leverprojecting through the leaf which carries the bolt, and a screw carriedby the other leaf for engaging with said locking-lever, substantially asset forth.

3. In a mechanical door-check, the combination of the two hinge-leaves,an abutment carried by or with one of said leaves, a pivotedchecking-bolt carried by or with the other of said leaves and normallyarranged in the same plane as said abutment, whereby the said bolt andabutment will engage together to perform a checking operation, a lockinglever for locking said bolt in its normal position, said lever beingcarried by and projecting through the leaf which carries the bolt andadapted to be engaged by a part of the other leaf, and an elastic devicewith which said pivoted bolt engages during the checking operation,substantially as set forth.

4. In a mechanical door-check, the combination of the two hinge-leaves,an abutment carried by or with one of said leaves, a pivotedchecking-bolt carried by or with the other of said leaves and normallyarranged in the same plane as said abutment, whereby the said bolt andabutment will engage together to perform a checking operation, a lockinglever for locking said bolt in its normal position, said lever beingcarried by and project'- ing through the leaf which carries the bolt andadapted to be engaged by a part of the other leaf, and means forresetting said bolt upon the opening movement of the hinge members,substantially as set forth.

5. In a mechanical door-check, the combination of the two hinge-leaves,an abutment carried by or with one of said leaves, a pivotedchecking-bolt carried by or with the other of said leaves and normallyarranged in the same plane as said abutment, whereby the said bolt andabutment will engage together to perform a checking operation, a lockinglever for locking said bolt in its normal position, said lever beingcarried by and projecting through the leaf which carries the bolt andadapted to be engaged by a part of the other leaf, a resetting-levercarried by the leaf to which said bolt is pivoted, and a resetting-camcarried with or by the other leaf for engagement with said resettinglever during the opening movement of the hinge leaves, substantially asset forth.

6. In a mechanical door-check, the combination of the two hinge-leaves,an abutment carried by or with one of said leaves, a pivotedchecking-bolt carried by or with the other of said leaves and normallyarranged in the same plane as said abutment, whereby the said bolt andabutment will engage together to perform a checking operation, alocking-lever for locking said bolt in its normal position, said leverprojecting through the leaf which carries the bolt and adapted to beengaged by a part of the other leaf, a resetting-lever carried by theleaf to which said bolt is pivoted, a-resetting-cam carried with or bythe other leaf for engagement with said resetting-lever during theopening movement of the hingeleaves, and means for adjusting theposition of said cam, substantially as set forth.

7. In a mechanical door-check, the combination of the two hinge-leaves,an abutment carried by or with one of said leaves, a pivotedchecking-bolt carried by or with the other of said leaves and normallyarranged in the same plane as said abutment, whereby the said bolt andabutment will engage together to perform a checking operation, alockinglever for locking said bolt in its normal position, said leverprojecting through the leaf which carries the bolt and adapted to beengaged by a part of the other leaf, a resettinglever carried by theleaf to which said bolt is pivoted, a resetting-cam carried with or bythe other leaf for engagement with said resetting-lever during theopening movement of the hinge-leaves, means for adjusting the positionof said cam, and means for moving said cam out of the path of theresetting-lever, substantially as set forth,

This specification signed and witnessed this 24th day of October, 1899.

CHARLES F. HANINGTON Witnesses:

AROHIBALD G. REESE, Jno. R. TAYLOR,

